增量动力分析地震动强度参数研究综述
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摘要
增量动力分析是目前基于性能的地震工程中最具有发展前景的方法之一。增量动力分析结果通过地震动强度参数与工程需求参数关系表示,地震动强度参数是影响增量动力分析方法评估结果的关键因素。从地震动强度参数的性质出发,在总结近年来标量型和向量型地震动强度参数研究现状和存在问题的基础上,指出基于反应谱谱形的地震动强度参数在有效性方面具有优势,仍为今后研究工作的主流方向。向量型地震动强度参数可提供更多信息,充分性、有效性优于标量型地震动强度参数,将是未来的发展趋势。基于多向地震动输入的地震动强度参数更能符合工程需求,也将成为研究的重点。
Incremental dynamic analysis( IDA) is a useful method in performance-based earthquake engineering. Different intensity measures( IMs) including scalar and vector-valued IMs that can lead to various results from IDA method. In this paper,properties of IMs are discussed first. Then state of the art and existing problems of IMs are summarized. It is indicated that one of the trends of IMs will still be the spectra shapebased IMs which have advantages in efficiency. Vector-valued IMs can provide with better information and are more efficient and sufficient than scalar IMs. IMs obtain from multi-direction earthquake inputs are closer to practice. Both of those IMs should be studied in the future.
Incremental dynamic analysis( IDA) is a useful method in performance-based earthquake engineering. Different intensity measures( IMs) including scalar and vector-valued IMs that can lead to various results from IDA method. In this paper,properties of IMs are discussed first. Then state of the art and existing problems of IMs are summarized. It is indicated that one of the trends of IMs will still be the spectra shapebased IMs which have advantages in efficiency. Vector-valued IMs can provide with better information and are more efficient and sufficient than scalar IMs. IMs obtain from multi-direction earthquake inputs are closer to practice. Both of those IMs should be studied in the future.
引文
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[21]Baker J W,Cornell C A.A vector-valued ground motion intensity measure consisting of spectral acceleration and epsilon[J].Earthquake Engineering and Structural Dynamics,2005,34(10):1193-1217.
[22]Baker J W,Cornell C A.Vector-valued intensity measures for pulse-like near-fault ground motions[J].Engineering Structures,2008,30(4):1048-1057.
[23]Bojórquez E,Iervolino I.Spectral shape proxies and nonlinear structural response[J].Soil Dynamics and Earthquake Engineering,2011,31(7):996-1008.
[24]Jalayer F,Beck J L,Zareian F.Analyzing the sufficiency of alternative scalar and vector intensity measures of ground shaking based on information theory[J].Journal of Engineering Mechanics,2011,138(3):307-316.
[25]Gehl P,Seyedi D M,Douglas J.Vector-valued fragility functions for seismic risk evaluation[J].Bulletin of Earthquake Engineering,2013,11(2):365-384.
[2]Lin L,Naumoski N,Saatcioglu M,et al.Improved intensity measures for probabilistic seismic demand analysis part 1:development of improved intensity measures[J].Canadian Journal of Civil Engineering,2010,38(1):79-88.
[3]周颖,吕西林,卜一.增量动力分析法在高层混合结构性能评估中的应用.同济大学学报(自然科学版),2010,38(2):183-193.Zhou Ying,Lu Xilin,Bu Yi.Application of incremental dynamic analysis to seismic evaluation of hybrid structure[J].Journal of Tongji University(Natural Science Edition),2010,38(2):183-193.(in Chinese)
[4]周颖,苏宁粉,吕西林.高层建筑结构增量动力分析的地震动强度参数研究[J].建筑结构学报,2013,34(2):53-60.Zhou Ying,Su Ningfen,Lu Xilin.Study on intensity measure of incremental dynamic analysis for high-rise structures[J].Journal of Building Structures,2013,34(2):53-60.(in Chinese)
[5]Bazzurro P,Cornell C A,Shome N,et al.Three proposals for characterizing MDOF nonlinear seismic response[J].Journal of Structural Engineering,1998,124(11):1281-1289.
[6]Vamvatsikos D,Cornell C A.Incremental dynamic analysis[J].Earthquake Engineering and Structural Dynamics,2002,31(3):491-514.
[7]Bojórquez E,Iervolino I,Reyes-Salazar A,et al.Comparing vector-valued intensity measures for fragility analysis of steel frames in the case of narrow-band ground motions[J].Engineering Structures,2012,45:472-480.
[8]Cordova P P,Deierlein G G,Mehanny S S F,et al.Development of a two-parameter seismic intensity measure and probabilistic assessment procedure[C].Proceedings of the 2nd US-Japan Workshop on Performance-Based Seismic Design Methodology for Reinforced Concrete Building Structures,2000.
[9]Mehanny S S F.A broad-range power-law form scalar-based seismic intensity measure[J].Engineering Structures,2009,31(7):1354-1368.
[10]杨成,潘毅,赵世春,等.烈度指标对IDA曲线离散性的影响[J].工程力学,2010,27(增刊I):68-72.Yang Cheng,Pan Yi,Zhao Shichun,et al.Effect of seismic intensity measure function to the IDA curves dispesion[J].Engineering Mechanics,2010,27(S I):68-72.(in Chinese)
[11]Bojórquez E,Iervolino I.A Spectral shape-based scalar ground motion intensity measure for maximum and cumulative structural demands[C].Proceedings.of 14th European Conference on Earthquake Engineering,2010.
[12]Asgarian B,Khazaee H,Mirtaheri M.Performance evaluation of different types of steel moment resisting frames subjected to strong ground motion through incremental dynamic analysis[J].International Journal of Steel Structures,2012,12(3):363-379.
[13]Lu X,Ye L P,Lu X Z,et al.An improved ground motion intensity measure for super high-rise buildings[J].Science China Technological Sciences,2013,56(6):if25-if33.
[14]Bianchini M,Diotallevi P P,Baker J W.Prediction of inelastic structural response using an average of spectral accelerations[C].10th International Conference on Structural Safety and Reliability(ICOSSAR09),Osaka,Japan.2009.
[15]ASCE/SEI 7-05.Minimum design loads for buildings and other structures[C].American Society of Civil Engineers,2006.
[16]Adeli M M,Banazadeh M,Deylami A,et al.Introducing a new spectral intensity measure parameter to estimate the seismic demand of steel moment-resisting frames using bayesian statistics[J].Advances in Structural Engineering,2012,15(2):231-248.
[17]Luco N,Cornell C A.Structure-specific scalar intensity measures for near-source and ordinary earthquake ground motions[J].Earthquake Spectra,2007,23(2):357-392.
[18]Lu X,Lu X Z,Guan H,et al.Comparison and selection of ground motion intensity measures for seismic design of super high-rise buildings[J].Advances in Structural Engineering,2013,16(7):1249-1262.
[19]Wang Z,Osorio L,Padgett J E.Optimal intensity measures for probabilistic seismic response analysis of bridges on liquefiable and non-liquefiable soils[C].Proceedings.of the 2012 Structures Congress,2012.
[20]杨成,徐腾飞,李英民,等.应用弹塑性反应谱对IDA方法的改进研究[J].地震工程与工程震动,2008,28(4):64-69.Yang Cheng,Xu Tengfei,Li Yingmin,et al.Research on modified IDA method by inelastic response spectrum[J].Journal of Earthquake Engineering and Engineering Vibration,2008,28(4):64-69.(in Chinese)
[21]Baker J W,Cornell C A.A vector-valued ground motion intensity measure consisting of spectral acceleration and epsilon[J].Earthquake Engineering and Structural Dynamics,2005,34(10):1193-1217.
[22]Baker J W,Cornell C A.Vector-valued intensity measures for pulse-like near-fault ground motions[J].Engineering Structures,2008,30(4):1048-1057.
[23]Bojórquez E,Iervolino I.Spectral shape proxies and nonlinear structural response[J].Soil Dynamics and Earthquake Engineering,2011,31(7):996-1008.
[24]Jalayer F,Beck J L,Zareian F.Analyzing the sufficiency of alternative scalar and vector intensity measures of ground shaking based on information theory[J].Journal of Engineering Mechanics,2011,138(3):307-316.
[25]Gehl P,Seyedi D M,Douglas J.Vector-valued fragility functions for seismic risk evaluation[J].Bulletin of Earthquake Engineering,2013,11(2):365-384.
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